Re: RFA: fix bugs in likely_spilled_retval_1 / likely_spilled_retval_p (Was: Re: RFA: Fix rtl-optimization/22258)

[Joern RENNECKE <joern dot rennecke at st dot com>]

Eric Botcazou wrote:

> Please bootstrap/regtest the patch as soon as possible and commit it on the 
> mainline.  Please also put a couple of ??? notes on the 4.1 and 4.2 branches 
> explaining that the code doesn't do what it is supposed to there.  Thanks.
>  

I did a bootstrap of the patch in i686-pc-linux-gnu in Revision 118519 using
--with-arch=i686 --disable-gdb --with-mpfr=/pd/mpfr/2.2.0-16/ 
--enable-languages=c,c++,java,objc .

I got one regression for the libjava tests:

RequestedEvents: 
VMInit,VMDeath,ThreadStart,ThreadEnd,ClassFileLoadHook,ClassLoad,ClassPrepare,VMStart,Exception,ExceptionCatch,SingleStep,FramePop,Breakpoint,FieldAccess,FieldModification,MethodEntry,MethodExit,NativeMethodBind,CompiledMethodLoad,CompiledMethodUnload,DynamicCodeGenerated,DataDumpRequest,MonitorWait,MonitorWaited,MonitorContendedEnter,MonitorContendedEntered,GarbageCollectionStart,GarbageCollectionFinish,ObjectFree,VMObjectAlloc,
VMInitCB jni_env=0x1 thread=0x2
VMDeathCB jni_env=0x1
ThreadStartCB jni_env=0x1 thread=0x2
ThreadEndCB jni_env=0x1 thread=0x2
ClassFileLoadHookCB jni_env=0x1 class_being_redefined=0x2 loader=0x3 
name=4 protection_domain=0x5 class_data_len=6 class_data=0x7 
new_class_data_len=0x8 new_class_data=0x9
ClassLoadCB jni_env=0x1 thread=0x2 klass=0x3
ClassPrepareCB jni_env=0x1 thread=0x2 klass=0x3
VMStartCB jni_env=0x1
ExceptionCB jni_env=0x1 thread=0x2 method=0x3 location=0x4 exception=0x5 
catch_method=0x6 catch_location=0x7
ExceptionCatchCB jni_env=0x1 thread=0x2 method=0x3 location=0x4 
exception=0x5
SingleStepCB jni_env=0x1 thread=0x2 method=0x3 location=0x4
FramePopCB jni_env=0x1 thread=0x2 method=0x3 was_pooped_by_exception=1
BreakpointCB  jni_env=0x1 thread=0x2 method=0x3 location=0x4
FieldAccessCB jni_env=0x1 thread=0x2 method=0x3 location=0x4 
field_klass=0x5 object=0x6 field=0x7
FieldModificationCB  jni_env=0x1 thread=0x2 method=0x3 location=0x4 
field_klass=0x5 object=0x6 field=0x7 signature_type=8 new_value=9
MethodEntryCB jni_env=0x1 thread=0x2 method=0x3
MethodExitCB jni_env=0x1 thread=0x2 method=0x3 was_popped_by_exception=1 
return_value=5
NativeMethodBindCB jni_env=0x1 thread=0x2 method=0x3 address=0x4 
new_address_ptr=0x5
CompiledMethodLoadCB method=0x1 code_size=0x2 code_addr=0x3 map_length=4 
map=0x5 compile_info=0x6
CompiledMethodUnloadCB method=0x1 code_addr=0x2
DynamicCodeGeneratedCB name=1 address=0x2 length=3
DataDumpRequestCB
MonitorWaitCB jni_env=0x1 thread=0x2 object=0x3 timeout=4
MonitorWaitedCB jni_env=0x1 thread=0x2 object=0x3 timed_out=1
MonitorContendedEnterCB jni_env=0x1 thread=0x2 object=0x3
MonitorContendedEnteredCB jni_env=0x1 thread=0x2 object=0x3
GarbageCollectionStartCB
GarbageCollectionFinishCB
ObjectFreeCB tag=1
VMObjectAllocCB jni_env=0x1 thread=0x2 object=0x3 object_klass=0x4 size=5
FAIL: events output

What does that mean?  How can I start to debug this?